Corrado Viettone
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Pixhawk fall from the sky in altitude hold mode

Started this discussion. Last reply by KiwiHC16 Nov 5. 20 Replies

Another crash caused by a switch to a different flight mode....After several good flights with my pixhawk equipped quad, i had a crash soon after take off immediately after switching to alt hold…Continue

Tags: alt, hold, mode, flight, crash

Pixhawk fall from the sky in position hold mode

Started this discussion. Last reply by Corrado Viettone Sep 1. 5 Replies

Hi everybody... a few days ago i had a crash with my quad. First i had a completely successful flight, 15 minutes with test of stab and alt hold modes working nicely, then i mounted the go pro…Continue

Tags: log, flyaway, crash, Pixhawk

Voltage Protector on Pixhawk?

Started this discussion. Last reply by Andre K. May 14. 1 Reply

Hi everybody, I was wondering if it would be any good (or bad?) to use a voltage protector like this…Continue

Tags: parachute, safety, emergency, protector, power

H8 power distribution

Started this discussion. Last reply by Corrado Viettone Nov 13, 2013. 2 Replies

Hi everybody, I'm building an H8 multirotor. I have a doubt about what would be the better power distribution layout:Option 1 (traditional): use a good power distribution board with 8 power outlets,…Continue

Tags: motor, esc, cable, wire, distribution

 

Corrado Viettone's Page

Latest Activity

KiwiHC16 replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"It s a pleasure. By investigating issues, it help me to understand and learn the ardupilot system. I wish you good flight with the new frame. "
Nov 5
Corrado Viettone replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"Kiwi, your investigation is excellent! Pity that it's not easy to come to a final conclusion. Anyway now that frame is broken, i've already put most of the electronics on another frame, an Y6, motors and escs are new but exactely of the…"
Nov 5
KiwiHC16 replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"I agree it's perfectly in sync with the AltHold activation. This tend to tell us that's not a physical failure (e.g. a motor loss). We also can see that the Yaw doesn’t move (from the camera and log). The pitch is not really impacted…"
Nov 4
Corrado Viettone replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"Yes, the gopro is on a gimbal, i also noticed the noise reduction indicating lack of thrust... I will check the power distribution, but it is made with heavy gauge wires and good bullet connectors, i don't think that is the problem, plus it…"
Nov 4
KiwiHC16 replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"This is in line with the log and video. Copter fall on the left. Pixhawk reduce motors on the right and increase on the left to come back to a stable position but probably no reaction from the motors. What I noticed this morning from the video is…"
Nov 4
Corrado Viettone replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"The pixhawk configuration is for standard quad, so motors 1 and 4 are on the right side of the frame. As you can see from the movie of the crash, the roll is to the left, so you're right saying that it's like the motors on the left failed,…"
Nov 3
KiwiHC16 replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"By checking the motor numbers (2 and 3 are on the left and 1 and 4 on the right based on documentation), which is the opposite of the channels mentioned in the post above. Question, did the roll started before the motors difference of did the motor…"
Nov 3
KiwiHC16 replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"What we can see is that just after the AltHold, RC2out and RC3out went to the max while RC1out and RC4out when to the mean. Could you check that RC2out and RC3out are on the right of the copter and RC1out and RC4out are on the left of the copter.…"
Nov 3
Corrado Viettone replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"No, in the area of the crash there isn't any radio tower..."
Nov 3
Paul Meier replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"Son, do you have bad experience around comm tower like the one pictured? I am asking because I fly an Iris close to one of the towers, and sometimes I have funny glitches, but mostly poor 915 telemetry. Thank you. Paul"
Nov 3
Corrado Viettone replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"Hi Kiwi, thank you for spending time analyzing my crash... Yes, RC2 is elevator (pitch). The reason the flight mode passes through sport mode before alt hold is that i configured two 3 pos switches of my taranis for the mode change, and to give time…"
Nov 3
KiwiHC16 replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"I find out that the copter didn't go to halt hold straight away from stabilized mode. It was in stabilized mode, then went to Sport and only then to HaltHold (at row 5026, then 5109, 83 rows). During the 83 rows period, you can see the pitch…"
Nov 3
Corrado Viettone replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"For sure not at close distance, also on google maps i can't see any in the area, do u think those antennas could interfere with the pixhawk? If so why would it do that at the moment of the flight mode switch?"
Oct 29
Son Jeepetch replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"like this "
Oct 29
Corrado Viettone replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"Don't understand what you mean..."
Oct 29
Son Jeepetch replied to Corrado Viettone's discussion Pixhawk fall from the sky in altitude hold mode
"Is that environment have an internet or stanchion pillar"
Oct 29

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Please tell us a bit about your UAV interest
Love everything that can take off vertically.
Hometown:
Rome

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